Hot rolling method and equipment
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 22, 2002
Grant Date -
N/A
app pub date -
Aug 28, 2000
filing date -
Jun 22, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Assuming that the processes of joining, rolling, coiling, etc. of a material is evaluated by a preset speed pattern after the extraction from a heating furnace, the required time is predicted and calculated for both of a preceding material and a following material. At the time when the following material can catch up with the preceding material at an aiming position on the line, the following material is extracted from the heating furnace according to the result of the above prediction calculation. Control is carried out so that both of the preceding material and the following material finish the process at a preset speed. Also, the traveling speed of the following material is controlled according to the position and the speed of the tail edge of the preceding material in a section close to the catch-up position so that a distance between the tail edge of the preceding material and the leading edge of the following material be closed. Thereby, three of the tail edge of the preceding material, the leading edge of the following material, and a movable joining apparatus are controlled at the aiming position on the hot rolling line so as to be in a positional relationship suitable for joining, by which the joining operation is completed properly in the travel zone of the joining apparatus.
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